DESCRIPTION

The MPQ4436/4436A is a frequency

programmable, synchronous, step-down

switching regulator with integrated internal highside and low-side power MOSFETs. It provides

6A (or less) of highly efficient output, with current

mode control for fast loop response.

The wide 3.3V to 45V input range

accommodates a variety of step-down

applications in an automotive input environment.

A 1.7μA shutdown mode quiescent current

allows the part to be used in battery-powered

applications.

High power conversion efficiency over a wide

load range is achieved by scaling down the

switching frequency in light-load conditions to

reduce the switching and gate driving losses.

An open-drain power good signal indicates that

the output is within 93% to 106% of its nominal

voltage.

Frequency foldback helps prevent inductor

current runaway during start-up. Thermal

shutdown provides reliable, fault-tolerant

operation.

High-duty cycle and low dropout mode are

provided for the automotive cold crank condition.

The MPQ4436/4436A is available in a QFN-20

(4mmx4mm) package.

FEATURES

? Wide 3.3V to 45V Operating Voltage Range

? 6A Continuous Output Current

? 1.7μA Low Shutdown Supply Current

? 18μA Sleep Mode Quiescent Current

? Internal 48m? High-Side and 20m? LowSide MOSFET

? 350kHz to 1000kHz Programmable

Switching Frequency for Car Battery

Applications

? Synchronize to External Clock

? Multi-Phase Capability

? Out-of-Phase Synchronized Clock Output

? Frequency Spread Spectrum (FSS) Option

for Low EMI

MPQ4436: Non-FSS version

MPQ4436A: FSS version

? Symmetric VIN for Low EMI

? Power Good Output

? External Soft Start

? 100ns Minimum On Time

? Selectable Advanced Asynchronous Mode

(AAM) or Forced Continuous Conduction

Mode (FCCM)

? Low Dropout Mode

? Hiccup Over-Current Protection

? Available in a QFN-20 (4mmx4mm)

Package

? Available in a Wettable Flank Package

? Available in AEC-Q100 Grade-1

APPLICATIONS

? Automotive Infotainment

? Automotive Clusters

? Advanced Driver Assistance Systems

? Industrial Power Systems

MPQ4436屬于集成電路（IC） > 穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器。美國芯源系統(tǒng)有限公司制造生產(chǎn)的MPQ4436穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會(huì)通過該元件。